The air quality is improving

Belski's Blog

Updated Friday afternoon......NASA
released a study today that shows that levels of the harmful pollutant, nitrogen dioxide, have decreased by 20 to 60% across the country in the period from 2005 to 2011.

Here is what NASA says about nitrogen dioxide......Nitrogen dioxide is one of the six common pollutants regulated by the U.S. Environmental Protection Agency (EPA) to protect human health. Alone it can impact the respiratory system, but it also contributes to the formation of other pollutants including ground-level ozone and particulates, which also carry adverse health effects. The gas is produced primarily during the combustion of gasoline in vehicle engines and coal in power plants. It's also a good proxy for the presence of air pollution in general.